PropertyDescriptorCollection Class
Represents a collection of PropertyDescriptor objects.
Assembly: System (in System.dll)
The PropertyDescriptorCollection type exposes the following members.
| Name | Description | |
|---|---|---|
![]() ![]() | PropertyDescriptorCollection(array<PropertyDescriptor>) | Initializes a new instance of the PropertyDescriptorCollection class. |
![]() | PropertyDescriptorCollection(array<PropertyDescriptor>, Boolean) | Initializes a new instance of the PropertyDescriptorCollection class, which is optionally read-only. |
| Name | Description | |
|---|---|---|
![]() ![]() | Count | Gets the number of property descriptors in the collection. |
![]() ![]() | Item[Int32] | Gets or sets the PropertyDescriptor at the specified index number. |
![]() ![]() | Item[String] | Gets or sets the PropertyDescriptor with the specified name. |
| Name | Description | |
|---|---|---|
![]() ![]() | Add | Adds the specified PropertyDescriptor to the collection. |
![]() ![]() | Clear | Removes all PropertyDescriptor objects from the collection. |
![]() ![]() | Contains | Returns whether the collection contains the given PropertyDescriptor. |
![]() ![]() | CopyTo | Copies the entire collection to an array, starting at the specified index number. |
![]() ![]() | Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
![]() ![]() | Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
![]() ![]() | Find | Returns the PropertyDescriptor with the specified name, using a Boolean to indicate whether to ignore case. |
![]() ![]() | GetEnumerator | Returns an enumerator for this class. |
![]() ![]() | GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
![]() ![]() | GetType | Gets the Type of the current instance. (Inherited from Object.) |
![]() ![]() | IndexOf | Returns the index of the given PropertyDescriptor. |
![]() ![]() | Insert | Adds the PropertyDescriptor to the collection at the specified index number. |
![]() | InternalSort(IComparer) | Sorts the members of this collection, using the specified IComparer. |
![]() | InternalSort(array<String>) | Sorts the members of this collection. The specified order is applied first, followed by the default sort for this collection, which is usually alphabetical. |
![]() ![]() | MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
![]() ![]() | Remove | Removes the specified PropertyDescriptor from the collection. |
![]() ![]() | RemoveAt | Removes the PropertyDescriptor at the specified index from the collection. |
![]() | Sort() | Sorts the members of this collection, using the default sort for this collection, which is usually alphabetical. |
![]() | Sort(IComparer) | Sorts the members of this collection, using the specified IComparer. |
![]() | Sort(array<String>) | Sorts the members of this collection. The specified order is applied first, followed by the default sort for this collection, which is usually alphabetical. |
![]() | Sort(array<String>, IComparer) | Sorts the members of this collection. The specified order is applied first, followed by the sort using the specified IComparer. |
![]() ![]() | ToString | Returns a string that represents the current object. (Inherited from Object.) |
| Name | Description | |
|---|---|---|
![]() | AsParallel | Enables parallelization of a query. (Defined by ParallelEnumerable.) |
![]() | AsQueryable | Converts an IEnumerable to an IQueryable. (Defined by Queryable.) |
![]() ![]() | Cast<TResult> | Casts the elements of an IEnumerable to the specified type. (Defined by Enumerable.) |
![]() ![]() | OfType<TResult> | Filters the elements of an IEnumerable based on a specified type. (Defined by Enumerable.) |
| Name | Description | |
|---|---|---|
![]() ![]() ![]() | ICollection::Count | Gets the number of elements contained in the collection. |
![]() ![]() ![]() | ICollection::IsSynchronized | Gets a value indicating whether access to the collection is synchronized (thread safe). |
![]() ![]() ![]() | ICollection::SyncRoot | Gets an object that can be used to synchronize access to the collection. |
![]() ![]() ![]() | IDictionary::Add | Adds an element with the provided key and value to the IDictionary. |
![]() ![]() ![]() | IDictionary::Clear | Removes all elements from the IDictionary. |
![]() ![]() ![]() | IDictionary::Contains | Determines whether the IDictionary contains an element with the specified key. |
![]() ![]() ![]() | IDictionary::GetEnumerator | Returns an enumerator for this class. |
![]() ![]() ![]() | IDictionary::IsFixedSize | Gets a value indicating whether the IDictionary has a fixed size. |
![]() ![]() ![]() | IDictionary::IsReadOnly | Gets a value indicating whether the IDictionary is read-only. |
![]() ![]() ![]() | IDictionary::Item | Gets or sets the element with the specified key. |
![]() ![]() ![]() | IDictionary::Keys | Gets an ICollection containing the keys of the IDictionary. |
![]() ![]() ![]() | IDictionary::Remove | Removes the element with the specified key from the IDictionary. |
![]() ![]() ![]() | IDictionary::Values | Gets an ICollection containing the values in the IDictionary. |
![]() ![]() ![]() | IEnumerable::GetEnumerator | Returns an IEnumerator for the IDictionary. |
![]() ![]() ![]() | IList::Add | Adds an item to the IList. |
![]() ![]() ![]() | IList::Clear | Removes all items from the collection. |
![]() ![]() ![]() | IList::Contains | Determines whether the collection contains a specific value. |
![]() ![]() ![]() | IList::IndexOf | Determines the index of a specified item in the collection. |
![]() ![]() ![]() | IList::Insert | Inserts an item into the collection at a specified index. |
![]() ![]() ![]() | IList::IsFixedSize | Gets a value indicating whether the collection has a fixed size. |
![]() ![]() ![]() | IList::IsReadOnly | Gets a value indicating whether the collection is read-only. |
![]() ![]() ![]() | IList::Item | Gets or sets an item from the collection at a specified index. |
![]() ![]() ![]() | IList::Remove | Removes the first occurrence of a specified value from the collection. |
![]() ![]() ![]() | IList::RemoveAt | Removes the item at the specified index. |
PropertyDescriptorCollection is read-only; it does not implement methods that add or remove properties. You must inherit from this class to implement these methods.
Using the properties available in the PropertyDescriptorCollection class, you can query the collection about its contents. Use the Count property to determine the number of elements in the collection. Use the Item property to get a specific property by index number or by name.
In addition to properties, you can use the Find method to get a description of the property with the specified name from the collection.
Note |
|---|
The HostProtectionAttribute attribute applied to this type or member has the following Resources property value: Synchronization. The HostProtectionAttribute does not affect desktop applications (which are typically started by double-clicking an icon, typing a command, or entering a URL in a browser). For more information, see the HostProtectionAttribute class or SQL Server Programming and Host Protection Attributes. |
The following code example creates a new PropertyDescriptorCollection using the properties on button1. It requires that button1 has been instantiated on a form.
The next example prints all the properties on a button in a text box. It requires that button1 and textBox1 have been instantiated on a form.
private: void MyPropertyCollection() { // Creates a new collection and assign it the properties for button1. PropertyDescriptorCollection^ properties = TypeDescriptor::GetProperties( button1 ); // Displays each property in the collection in a text box. for each ( PropertyDescriptor^ myProperty in properties ) { textBox1->Text = String::Concat( textBox1->Text, myProperty->Name, "\n" ); } }
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

